Major anxiety possibly...

So I took my Iud out (mirena) had it for 2.5 yrs. I had the day after spotting but nothing like af. Its been 2 wks since having it out. Husband and I have been trying to conceive 2nd child together. I have felt nauseous and always wanting to eat eggs. How can you tell your pregnant so early. I did take 2 pregnancy tests both negative. Should I go to the dr to do blood work or is this from my iud being removed its falsifying my symptoms. Help ladies I feel super lost after not having a period for yrs.